diff --git a/flake.nix b/flake.nix
index 1f774be..d0788e6 100644
--- a/flake.nix
+++ b/flake.nix
@@ -19,6 +19,15 @@
     };
   };
 
+  nixConfig = {
+    extra-substituters = [
+      "https://install.determinate.systems"
+    ];
+    extra-trusted-public-keys = [
+      "cache.flakehub.com-3:hJuILl5sVK4iKm86JzgdXW12Y2Hwd5G07qKtHTOcDCM="
+    ];
+  };
+
   outputs =
     { self, nixpkgs, ... }@inputs:
     let